Shaped charges having enhanced tungsten liners
AssigneeBaker Hughes Incorporated
InventorsJames Warren Reese, David Betancourt, Nathan Clark, Terry Slagle
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Abstract
A liner for a shaped charge formed from a mixture of powdered heavy metal and a powdered metal binder. The liner is formed by compression of the mixture into a liner body. In one embodiment of the invention, the mixture comprises a range of 50 to 93 percent by weight of tungsten, and 50 to 7 percent by weight of the powdered metal binder. In a specific embodiment of the invention, graphite powder is intermixed with the powdered metal binder to act as a lubricant during formation of the shaped charge liner. The powdered metal binder can be a combination of copper powder, lead, and molybdenum.
Claims44
A liner for a shaped charge, which liner comprises:
- a mixture of powdered heavy metal and a powdered metal binder compressively formed into a liner body, wherein said powdered metal binder comprises copper powder, lead, and molybdenum, said powdered heavy metal comprising from 50 percent by weight of said mixture to 97 percent by weight of said mixture, and said powdered metal binder comprising from 3 percent by weight of said mixture to 50 percent by weight of said mixture.
A shaped charge comprising:
- a housing;
- a quantity of explosive inserted into said housing;
- and
- a liner inserted into said housing so that said quantity of explosive is positioned between said liner and said housing, said liner comprising a mixture of powdered heavy metal and a powdered metal binder compressively formed into a liner body, wherein said powdered metal binder comprises copper powder, lead, and molybdenum, said powdered heavy metal comprising from 50 percent by weight of said mixture to 97 percent by weight of said mixture, and said powdered metal binder comprising from 50 percent by weight of said mixture to 3 percent by weight of said mixture.
Dependencies are inferred from the claim text.